Description Provide protection and comfort using The Assura Two-Piece EasiClose Drainable Pouch by Coloplast. It is a mechanical coupling system that combines the unique spiral adhesive with an audible click to ensure safe locking of the pouch to the barrier. Assura AC drainable pouch is available with standard or extended wear adhesive barriers. The full line includes transparent and opaque pouches, which correspond to the Assura AC barriers based on a color-coded coupling system. Thus, a barrier with a red coupling size must be matched to a red pouch.